• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Solid State Communications >Correlations of structure and dynamics in an aging colloidal glass
【24h】

Correlations of structure and dynamics in an aging colloidal glass

机译：老化的胶体玻璃的结构和动力学相关性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We study concentrated colloidal suspensions, a model system which has a glass transition. Samples in the glassy state show aging, in that the motion of the colloidal particles slows as the sample ages from an initial state. We study the relationship between the static structure and the slowing dynamics, using confocal microscopy to follow the three-dimensional motion of the particles. The structure is quantified by considering tetrahedra formed by quadruplets of neighboring particles. We find that while the sample clearly slows down during aging, the static properties as measured by tetrahedral quantities do not vary. However, a weak correlation between tetrahedron shape and mobility is observed, suggesting that the structure facilitates the motion responsible for the sample aging. (c) 2006 Elsevier Ltd. All rights reserved.
机译：我们研究浓缩的胶体悬浮液，这是一种具有玻璃化转变的模型系统。处于玻璃态的样品显示老化，这是因为随着样品从初始状态老化，胶体颗粒的运动变慢。我们使用共聚焦显微镜研究了粒子的三维运动，研究了静态结构与减速动力学之间的关系。通过考虑由相邻颗粒的四联体形成的四面体来量化结构。我们发现，尽管样品在老化过程中明显变慢，但通过四面体量测得的静态特性没有变化。但是，观察到四面体形状与迁移率之间的相关性较弱，这表明该结构有助于引起样品老化的运动。 （c）2006 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号